\documentclass[]{article}
\setlength{\pdfpagewidth}{8.5in} \setlength{\pdfpageheight}{11in}
\begin{document}
\begin{tabular}{lc} \hline
 & (1) \\\
 & FE0 \\\
VARIABLES & gr\_pop \\\ \hline
 &  \\\
p1871cotshr & -0.204*** \\\
 & (0.0758) \\\
p1881cotshr & -0.0761** \\\
 & (0.0302) \\\
p1891cotshr & -0.0672 \\\
 & (0.0708) \\\
const & 0.285*** \\\
 & (0.0323) \\\
 &  \\\
Observations & 90 \\\
 R-squared & 0.901 \\\ \hline
\multicolumn{2}{c}{ Standard errors in parentheses} \\\
\multicolumn{2}{c}{ *** p$<$0.01, ** p$<$0.05, * p$<$0.1} \\\
\end{tabular}
\end{document}
